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141 条记录 (耗时 0.04 秒)

    Anatomical thermal sensing device and method
    92.
    发明授权
    Anatomical thermal sensing device and method 有权

    公开(公告)号：US08388549B2

    公开(公告)日：2013-03-05

    申请号：US12751946

    申请日：2010-03-31

    申请人： Saurav Paul ,  Todd Stangenes ,  Riki Thao

    发明人： Saurav Paul ,  Todd Stangenes ,  Riki Thao

    IPC分类号： A61B5/00

    CPC分类号： A61B18/1402 ,  A61B5/01 ,  A61B5/015 ,  A61B5/053 ,  A61B5/6852 ,  A61B5/6885 ,  A61B2562/0271

    摘要： A medical device utilizing temperature sensing to identify or assess anatomical bodies or structures includes an elongate tubular member, at least one electrode, a thermal sensor, and a temperature response assessment system or component. The at least one electrode may be connected to the distal portion of the elongate tubular member, and the one or more electrode can be configured to provide energy or heat to a portion of an anatomical body or structure. The thermal sensor may be configured to measure the thermal response of the portion of an anatomical body or structure, e.g., tissue or blood pools. The temperature response assessment system or component can be coupled to the thermal sensor. In embodiments, the device may include a lumen and port opening, which may accommodate a tool, such as a needle. Methods for using temperature sensing to identify an anatomical body or structure are also disclosed.

    Fast-acting or rotating transseptal needle
    94.
    发明申请
    Fast-acting or rotating transseptal needle 有权
    快速或旋转经口针

    公开(公告)号：US20110270191A1

    公开(公告)日：2011-11-03

    申请号：US13142957

    申请日：2009-12-23

    申请人： Saurav Paul ,  Todd R. Stangenes ,  Reer R. Heimbecher

    发明人： Saurav Paul ,  Todd R. Stangenes ,  Reer R. Heimbecher

    IPC分类号： A61B17/34

    CPC分类号： A61B17/3403 ,  A61B17/3478 ,  A61B17/3498 ,  A61B2017/00243 ,  A61B2017/3405 ,  A61M29/00

    摘要： A transseptal medical device (10, 110) is provided including a dilator (12, 112), a needle (14, 114), and a needle control mechanism (22, 122). The needle (14, 114) may be disposed within the dilator (12, 112), and the needle control mechanism (22, 122) may be operably connected to a proximal end (24, 124, 16, 116) of the needle (14, 114) or the dilator (12, 112) for selective adjustment of the distal end (26, 126) of the needle (14, 114) from a first position within the dilator (12, 112) to a second position external to the dilator (12, 112). The needle control mechanism (22) may include an actuator (32) configured for rotation within the dilator in one embodiment.

    摘要翻译： 提供了一种经血管医疗装置（10,110），其包括扩张器（12,112），针（14,114）和针控制机构（22,122）。 针（14,114）可以设置在扩张器（12,112）内，并且针控制机构（22,122）可以可操作地连接到针的近端（24,124,16,116） 14,114）或扩张器（12,112），用于选择性地将针（14,114）的远端（26,126）从扩张器（12,112）内的第一位置调节到第二位置 扩张器（12,112）。 针控制机构（22）可以包括在一个实施例中构造成用于在扩张器内旋转的致动器（32）。

    Tissue anchoring catheter systems and methods
    95.
    发明授权
    Tissue anchoring catheter systems and methods 有权
    组织锚固导管系统及方法

    公开(公告)号：US07824377B2

    公开(公告)日：2010-11-02

    申请号：US11962512

    申请日：2007-12-21

    申请人： James V. Kauphusman ,  Israel A. Byrd ,  Saurav Paul

    发明人： James V. Kauphusman ,  Israel A. Byrd ,  Saurav Paul

    IPC分类号： A61M5/178

    CPC分类号： A61M25/04 ,  A61B2018/00797 ,  A61B2018/00815 ,  A61B2018/00821 ,  A61B2090/065 ,  A61M25/0084 ,  A61M2025/0089 ,  A61M2025/0095

    摘要： Catheter systems and methods are disclosed for anchoring the catheter system to tissue, e.g., for delivery of biologic or chemical agents, or other therapeutic fluid during various procedures. An exemplary tissue anchoring catheter comprises an outer catheter shaft connected to a catheter handle. A delivery sheath is provided within the outer catheter shaft, the delivery sheath housing a needle. At least one anchor is operatively associated with the delivery sheath, the at least one anchor operable at the catheter handle to secure the delivery sheath to tissue for conveying biologic or chemical agents, or other therapeutic fluid from the needle to the tissue. The tissue anchoring catheter may further comprise sensing means such as piezoelectric, pressure, thermistor, thermocouple, or ultrasound sensors.

    摘要翻译： 公开了用于将导管系统锚定到组织​​的导管系统和方法，例如用于在各种程序期间递送生物或化学试剂或其它治疗性流体。 示例性组织锚定导管包括连接到导管手柄的外导管轴。 输送护套设置在外导管轴内，输送护套容纳针。 至少一个锚定件与输送护套可操作地相关联，所述至少一个锚固件可在导管手柄处操作以将输送护套固定到组织，用于将生物或化学试剂或其它治疗流体从针输送到组织。 组织锚定导管还可以包括诸如压电，压力，热敏电阻，热电偶或超声波传感器的感测装置。

    System and Method for Assessing Coupling Between an Electrode and Tissue
    96.
    发明申请
    System and Method for Assessing Coupling Between an Electrode and Tissue 有权
    用于评估电极和组织之间耦合的系统和方法

    公开(公告)号：US20090163904A1

    公开(公告)日：2009-06-25

    申请号：US12253637

    申请日：2008-10-17

    申请人： Stephan P. Miller ,  Don Curtis Deno ,  Saurav Paul

    发明人： Stephan P. Miller ,  Don Curtis Deno ,  Saurav Paul

    IPC分类号： A61B18/18

    CPC分类号： A61B18/1492 ,  A61B5/053 ,  A61B18/1233 ,  A61B18/14 ,  A61B2018/00178 ,  A61B2018/00875 ,  A61B2090/065

    摘要： A system and method for assessing a degree of coupling between an electrode and tissue in a body is provided. Values for first and second components of a complex impedance (e.g., resistance and reactance or impedance magnitude and phase angle) between the electrode and the tissue are obtained. From these values, a coupling index is calculated that that is indicative of a degree of coupling between the electrode and the tissue. The coupling index may be displayed to a clinician in a variety of ways to indicate the degree of coupling to the clinician. The system and method find particular application in ablation of tissue by permitting a clinician to create lesions in the tissue more effectively and safely.

    摘要翻译： 提供了一种用于评估身体中电极和组织之间的耦合程度的系统和方法。 获得电极和组织之间的复阻抗的第一和第二分量的值（例如，电阻和电抗或阻抗幅度和相位角）。 根据这些值，计算出表示电极和组织之间的耦合程度的耦合指数。 耦合指数可以以各种方式显示给临床医生以指示与临床医生的耦合程度。 该系统和方法通过允许临床医生更有效和安全地在组织中产生损伤来发现组织消融中的特定应用。

    Photodynamic-based cardiac ablation device and method via the esophagus
    97.
    发明授权
    Photodynamic-based cardiac ablation device and method via the esophagus 有权
    基于光动力学的心脏消融装置和通过食道的方法

    公开(公告)号：US09198726B2

    公开(公告)日：2015-12-01

    申请号：US11967350

    申请日：2007-12-31

    申请人： Saurav Paul ,  Israel A. Byrd

    发明人： Saurav Paul ,  Israel A. Byrd

    IPC分类号： A61B18/18 ,  A61B18/24 ,  A61N5/06 ,  A61B18/22

    CPC分类号： A61B18/24 ,  A61B2018/2272 ,  A61N5/0601 ,  A61N5/062

    摘要： A method and system for ablation of cardiac tissue in a living being via the esophagus is provided. The method includes the step of introducing a photodynamic substance to the cardiac tissue. A deformable, elongated body defining a proximal end and a distal end is inserted into an esophagus of the living being. The distal end of the elongated body is located proximate the cardiac tissue. A first set of electromagnetic radiation is then directed from the distal end of the elongated body towards the cardiac tissue. Reflective and opaque surfaces at the distal end of the elongated body may be used to direct the electromagnetic radiation and an expandable membrane at the distal end may be used to urge the distal end of the elongated body to a predetermined position within the esophagus.

    摘要翻译： 提供了一种通过食道消融心脏组织的方法和系统。 该方法包括将光动力学物质引入心脏组织的步骤。 限定近端和远端的可变形的细长主体被插入到生命的食道中。 细长体的远端位于心脏组织附近。 然后将第一组电磁辐射从细长体的远端引向心脏组织。 在细长体的远端处的反射和不透明表面可以用于引导电磁辐射，并且在远端处的可扩张膜可以用于将细长体的远端推动到食道内的预定位置。

    System and method for assessing coupling between an electrode and tissue
    98.
    发明授权
    System and method for assessing coupling between an electrode and tissue 有权
    用于评估电极和组织之间的耦合的系统和方法

    公开(公告)号：US08449535B2

    公开(公告)日：2013-05-28

    申请号：US12253637

    申请日：2008-10-17

    申请人： Don Curtis Deno ,  Stephan Paul Miller ,  Saurav Paul

    发明人： Don Curtis Deno ,  Stephan Paul Miller ,  Saurav Paul

    IPC分类号： A61B18/18

    CPC分类号： A61B18/1492 ,  A61B5/053 ,  A61B18/1233 ,  A61B18/14 ,  A61B2018/00178 ,  A61B2018/00875 ,  A61B2090/065

    摘要： A system and method for assessing a degree of coupling between an electrode and tissue in a body is provided. Values for first and second components of a complex impedance (e.g., resistance and reactance or impedance magnitude and phase angle) between the electrode and the tissue are obtained. From these values, a coupling index is calculated that is indicative of a degree of coupling between the electrode and the tissue. The coupling index may be displayed to a clinician in a variety of ways to indicate the degree of coupling to the clinician. The system and method find particular application in ablation of tissue by permitting a clinician to create lesions in the tissue more effectively and safely.

    摘要翻译： 提供了一种用于评估身体中电极和组织之间的耦合程度的系统和方法。 获得电极和组织之间的复阻抗的第一和第二分量的值（例如，电阻和电抗或阻抗幅度和相位角）。 根据这些值，计算表示电极和组织之间的耦合程度的耦合指数。 耦合指数可以以各种方式显示给临床医生以指示与临床医生的耦合程度。 该系统和方法通过允许临床医生更有效和安全地在组织中产生损伤来发现组织消融中的特定应用。

    Monitoring, Managing and/or Protecting System and Method for Non-Targeted Tissue
    100.
    发明申请
    Monitoring, Managing and/or Protecting System and Method for Non-Targeted Tissue 有权
    非目标组织的监测，管理和/或保护系统和方法

    公开(公告)号：US20110276046A1

    公开(公告)日：2011-11-10

    申请号：US13101755

    申请日：2011-05-05

    申请人： Reed R. Heimbecher ,  Saurav Paul ,  John M. Berns ,  Jeffrey A. Schweitzer

    发明人： Reed R. Heimbecher ,  Saurav Paul ,  John M. Berns ,  Jeffrey A. Schweitzer

    IPC分类号： A61B18/12

    CPC分类号： A61B18/1492 ,  A61B18/18 ,  A61B34/30 ,  A61B90/04 ,  A61B2018/0022 ,  A61B2018/00285 ,  A61B2018/00642 ,  A61B2018/00696 ,  A61B2018/00714 ,  A61B2018/00779 ,  A61B2018/00869 ,  A61B2018/00875 ,  A61B2018/00898 ,  A61B2018/00904 ,  A61B2034/301

    摘要： A monitoring, managing and protecting system is provided that includes a monitoring probe working in conjunction with an ablating device. The probe is configured to be positioned in close proximity to a region of non-targeted tissue proximate an ablation site of targeted tissue and to be operatively connected to an electrical response assessment system or component. The probe includes an elongate shaft having proximal and distal ends, with a handle disposed at the proximal end thereof and a tissue monitoring and protecting apparatus disposed at the distal end thereof. The ablating device includes an elongate shaft having proximal and distal ends, with a handle mounted at the proximal end thereof and an ablation element mounted at the distal end thereof. The monitoring probe measures electrical characteristics of the non-targeted tissue and/or of the tissue between the monitoring electrode and the ablation electrode. The electrical response assessment system determines whether the tissue is being damaged based on the electrical measurements. The monitoring, managing and protecting system can notify a practitioner based on the determination, or modify or stop the ablation procedure.

    摘要翻译： 提供了一个监测，管理和保护系统，其中包括与消融装置一起工作的监测探头。 探针被配置为定位成紧邻目标组织的消融部位附近的非目标组织的区域并且可操作地连接到电响应评估系统或部件。 探针包括具有近端和远端的细长轴，其近端处设有手柄，以及设置在其远端处的组织监测和保护装置。 该烧蚀装置包括具有近端和远端的细长轴，其手柄安装在其近端处，并且消融元件安装在其远端处。 监测探针测量监测电极和消融电极之间的非目标组织和/或组织的电特性。 电响应评估系统基于电测量确定组织是否被损坏。 监测，管理和保护系统可以根据确定或修改或停止消融程序通知医生。